Crayon sharpener



Patented Aug. y8, 1933 Nirso srAss PATENT This invention has reference to a Vdevice designed for sharpening crayons, and is particularly designed for sharpening crayons used in keeping bowlingrscores.

An important object of the invention is to provide a device of this character which may be securely held in position, and one which may be readily removed to facilitate cleaning thereof.

. Another object of the invention is to vprovide a Sharpener having means to guide the crayon to the knives of the Sharpener, the guiding means being such as to insure against lateral movement of the crayon to prevent the crayon breaking, during the sharpening operation.

With the foregoing and other objects in View, which will appear as the description proceeds, the inventionresi'des in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention. A

Referring to the drawing:

Figure 1 is a front elevational view af a sharpenerconstructed in accordance with the invention.

Figure 2 is a plan view thereof, illustrating the Sharpener positioned on a support.

Figure 3 is a sectional View taken on line 3 3 of Figure l.

Figure 4 is a sectional view taken on line 4 4 of Figure 1.

Figure 5 is an elevational view of one of the cutting blades.

v Figure 6 is an elevational View of the cooperating blade.

Figure '7 is an elevational view of an attachment to be used when crayons of small diameters are being sharpened.

Referring tothe drawing in detail, the sharpener comprises a container or body portion indicated by the reference character 5, the body portion having an opening at one end thereof, which opening is normally closed by means of the hinged closure 6.

This opening provides means whereby the shavngs of the crayons may be readily removed from the body portion.

Secured to the inner surface of the body portion, is a supporting member 7, which Yhas lateral extensions 8 tted under the flanges 9 of the plate 10, which is secured to a supporting surface.

Due to this construction, the body portion may be readily and easily removed from its support, to dump the contents thereof.r The front wall of the body portion is formed with a circular opening in whchthe guide 11 is positioned, the

guide 11 being formed with a groove to accommodate a portion of the front wall, securing the guide against movement.

The blades of the crayon Sharpener, are indicated by the reference characters 12 and 13 respectively, the blade 12 being formed with a notch 14 to receive the blade 13, the blade 13 being formed with a notch 15 of such a length that when the blades are positioned, the cutting surfaces of the blades will be held at right angles with respect to each other.

Extensions 16 are formed at one end of each blade, while extensions 17 are formed at the opposite ends of the blades,A which extensions t into openings formed in the front and rear walls of the body portion, securing the blades within the body portion. As clearly shown by Figures 5 and 6 of the drawing, the cuttingedges of the blades are inclined towards a common point, so that the crayon when rotated over the blades, will be sharpened to a fine point, to better accomplish its purpose.

Should it be desired to sharpen crayons of small diameters, a tubular member such as shown by Figure '7 of the drawing is used, the tubular member being indicated by the reference character 18.

The diameter of the tubular member 18 is such that the tubular member will closely t within the guide l1, the interior diameter of the tubular member accommodating crayons of small diameters.

The inner end of the tubular member 18'is bevelled as at 19, so that it will conform to the shape of the blades, preventing lateral movement of the tubular member 18.

A knurled flange 20 is formed on the outer end of the tubular member or guide 18, and provides means to be gripped by the operator to permit the tubular member to be readily positioned.

In the use of the device, it is only necessary to insert a crayon to be sharpened in the guide 11 or tubular member 18 and rotate the crayon. It will of course be obvious that slight pressure is directed to the crayon to cause the crayon to be fed into the body portion as the crayon is sharpened.

Having thus described'the invention what is claimed is:

A crayon sharpening device comprising a body portion having blades and having an opening opposite to the blades, a guide member having an extension fitted in the opening, a tubular member tted in the extension and having a flange -itted against the body vportion restricting inward movement of the tubular member within the body portion, the inner end of the body portion being beveled and fitted against the blades, and means for securing the blades within the body portion.

LOUIS CASSINI. 

